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Please help me solve this maths question it is rlly important (press on attached photo)

Please help me solve this maths question it is rlly important (press on attached photo-example-1
User Shoelaced
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Answer:

please see answers below

Explanation:

13a)

120 books at £4 each = £480

he sells 60 books at £5 each = £300

he sells 40% of 120 books (48 books) at £7 each = £336

he has sold 60 + 48 books = 108 books.

he has 120 - 108 = 12 remaining.

he sells these 12 at £8 each = £96.

his sales are 300 + 336 + 96 = £732.

formula for percentage profit = (profit/cost price) X 100

= [(732 - 480) / 480] X 100

= (252/480) X 100

= 52.5%

13b) £15 is 120% of the price

15/120 = 0.125 is 1% of the price

so 100 X 0.125 = £12.50 is 100% of the price (ie the value in May 2018)

User Xdays
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